... Friedrich: Collected Works, New York: International,1988, vol. 43, рр. 295–296[2] Вж. Rockhill, Gabriel. The CIA & the Frankfurt school’s anti-communism, In: The Philosophical Salon,https://thephilosophicalsalon.com/the-cia-the-frankfurt-schools-anti-communism/, June 27, 2022 Източник - Вестник „Тракия“
